ERROR! Vars in a Play must be specified as a dictionary, or a list of dictionaries The error appears to be in '/opt/bigdata/qidong.yml': line 6, column 6, but may be elsewhere in the file depending on the exact syntax problem. The offending line appears to be: vars: master_ip=$(ansible-inventory -i /opt/hosts/host2 --list | jq -r '.master.hosts[0]') ^ here
时间: 2024-02-28 19:54:46 浏览: 36
这个错误是因为在 playbook 的`vars`中使用了 shell 命令,但是 shell 命令应该在 task 中使用,而不是在 playbook 的 vars 中使用。
您可以将该命令移动到 task 中,例如:
```
- name: 获取master组第一个IP
shell: ansible-inventory -i /opt/hosts/host2 --list | jq -r '.master.hosts[0]'
register: master_ip
```
然后您就可以在 playbook 的其他任务中使用`master_ip.stdout`变量,例如:
```
- name: 在{{ master_ip.stdout }}上执行命令
shell: echo "Hello World"
delegate_to: "{{ master_ip.stdout }}"
```
这将会在`master_ip`变量中注册您所需的值,并且您可以使用`master_ip.stdout`来引用该值。
相关问题
As a basic requirement, the data structures used must be formally specified in the interface description or data definition. The data structures used in the application must conform to this formal specification.怎么理解
这段话的意思是,在应用程序中使用的数据结构必须在接口描述或数据定义中得到正式的规定。这个规定必须被遵循,也就是说,应用程序中使用的数据结构必须与规定的形式一致。这是因为在应用程序中,数据的正确性和完整性非常重要,如果数据结构没有被正确规定并被遵循,就会导致数据混乱和应用程序错误。因此,这个要求强调了数据结构的规范化和规范的重要性。
The specified base path "/home/oem/ros" contains a CMakeLists.txt but "catkin_make" must be invoked in the root of workspace
It seems that you are encountering an issue with the specified base path and the invocation of "catkin_make". "catkin_make" should be invoked in the root directory of your workspace, rather than in a directory that contains a CMakeLists.txt file.
To resolve this issue, you will need to navigate to the root directory of your workspace, which is usually the directory that contains the "src" folder. Once you are in the correct directory, you can run the "catkin_make" command to build your ROS workspace.
Here's an example of how you can navigate to the root directory and run "catkin_make":
1. Open a terminal.
2. Change your current directory to the root directory of your workspace:
```
cd /home/oem/ros
```
3. Run "catkin_make":
```
catkin_make
```
Make sure to replace "/home/oem/ros" with the actual path to your workspace.
Let me know if you have any further questions!